Science 5.5A (English)

Science 5.5A (English)

Let's review...

Multiple Choice

Which column headings should the students use for their table?

Students

Explain your thinking....

Answer: B

Brass keys are NOT soluble nor magnetic-get rid of answers C & D.

Cooking oil is not attracted to magnets-get rid of answer choice A.

B: All in first column conduct electricity, all in second column are less dense than water (Float on water), and all in third column are soluble (dissolve or disappear when mixed with water).

Open Ended

Identify 1 more item for each column.

Multiple Choice

Based on the student's observations in the table, how many of the substances did NOT dissolve in the water?

• 1 substance

• 2 substances

• 3 substances

• 4 substances

Students

Explain your thinking.

Answer: H

Make sure to underline, highlight the word NOT. We are looking for a NO.

You only need to look at the last column-what happened after stirring was stopped.

Iron filings-NO (particles on bottom)

Papain-YES (clear)

Talcum Powder-NO (Top of liquid)

Oil-NO (Top of water)

Open Ended

What other items are soluble (dissolve)?

Multiple Choice

Which statement correctly identifies two of the materials based on the classification of properties in the table?

• Material 1 is a rubber ball. Material 2 is a piece of cardboard.

• Material 2 is an aluminum washer. Material 3 is a copper wire.

• Material 3 is a piece of cardboard. Material 3 is an aluminum washer.

• Material 1 is a copper wire. Material 4 is a rubber ball.

Students

Explain your thinking.

Answer: H

Get rid of F-Rubber does not conduct electricity.

Get rid of G and J-Copper is a great conductor of electricity

Multiple Select

Which of the following would describe the rubber ball? Check all that apply.

• Insulates Thermal Energy

• Floats in water

• Conducts Electrical Energy

Multiple Choice

Based on the properties, which of the objects is mostly likely metal?

• Object 1, because it is a solid that is less dense than water

• Object 2, because all metals float in water

• Object 2, because metals conduct thermal energy and electricity

• Object 1, because it can be used to provide insulation for thermal energy

Students

Explain your thinking.

Answer C

Metals conduct both thermal energy and electrical energy.

Open Ended

What could object 1 be?

Multiple Choice

Based on the students' observations, which of these tables properly identifies the objects?

Students

Explain your thinking.

Answer: J

Get rid of answer F because there is only 1 liquid.

Get rid of answer G because sugar is soluble.

Get rid of answer H because iron is attracted to a magnet.

Multiple Select

Select all that could be labeled "M".

• coffee

• lemon juice

• sand

• salt

Multiple Choice

The student has four materials to choose from. Which of these materials is least useful as an insulator?

• Cardboard

• Aluminum

• Rubber

• Plastic

Students

Explain your thinking.

Answer: G

Metals (aluminum) are goods CONDUCTORS of thermal energy not INSULATORS.

Multiple Choice

Wood is a good ____________ of thermal energy.

• conductor

• insulator